attiny15l ATMEL Corporation, attiny15l Datasheet - Page 35

• Manufacturer Part Number: attiny15l
• Description: Attiny15l 8-bit Microcontroller With 1k Byte Flash
• Manufacturer: ATMEL Corporation

1187H–AVR–09/07
1. In the same operation, write a logical “1” to WDTOE and WDE. A logical “1” must
2. Within the next four clock cycles, write a logical “0” to WDE. This disables the
• Bits 2..0 – WDP2, WDP1, WDP0: Watchdog Timer Prescaler Bits 2, 1, and 0
The WDP2, WDP1 and WDP0 bits determine the Watchdog Timer prescaling when the
Watchdog Timer is enabled. The different prescaling values and their corresponding
time-out periods are shown in Table 15.
Table 15. Watchdog Timer Prescale Select
be written to WDE even though it is set to one before the disable operation starts.
Watchdog.
WDP2
0
0
0
0
1
1
1
1
WDP1
0
0
1
1
0
0
1
1
WDP0
0
1
0
1
0
1
0
1
Time-out Period
1,024K cycles
2,048K cycles
128K cycles
256K cycles
512K cycles
16K cycles
32K cycles
64K cycles
ATtiny15L
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